Boot Stuck ( i already did nvram reset, safe mode, recovery mode)

My mac is MBP 9.2 (mid 2012) running on 10.10.3

i was installed modem driver for zte t mobile modem. Then suddenly the mac was hang. I decided to hard reboot the mac. Then the problems happened. I cannot boot from my drive. (Stuck ad 30-40%)

I have tried the safe mode. Not working. The safe mode stuck at 50%

I have tried the recovery mode, repair disk, repair permission. Still not working.

I need my mac soon for presentation and i cant have a good internet connection for reinstalling.

Anybody got the solution ?